When Wangari Maathai was a little girl growing up in central Kenya in Africa, the land was green, the streams full, and the trees grew thick and lush. To help her family with meals, Wangari gathered firewood from the trees around her village. On her first day gathering, her mother told her "Don't...

One morning, more than a hundred years ago on the island of Jamaica, a boy named Ethelred Brown went to church. Usually at this church, the people sang their creed, their list of what they believed....